15x-(3x-5)(4x+5)=5-12x^2

Simple and best practice solution for 15x-(3x-5)(4x+5)=5-12x^2 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 15x-(3x-5)(4x+5)=5-12x^2 equation:


Simplifying
15x + -1(3x + -5)(4x + 5) = 5 + -12x2

Reorder the terms:
15x + -1(-5 + 3x)(4x + 5) = 5 + -12x2

Reorder the terms:
15x + -1(-5 + 3x)(5 + 4x) = 5 + -12x2

Multiply (-5 + 3x) * (5 + 4x)
15x + -1(-5(5 + 4x) + 3x * (5 + 4x)) = 5 + -12x2
15x + -1((5 * -5 + 4x * -5) + 3x * (5 + 4x)) = 5 + -12x2
15x + -1((-25 + -20x) + 3x * (5 + 4x)) = 5 + -12x2
15x + -1(-25 + -20x + (5 * 3x + 4x * 3x)) = 5 + -12x2
15x + -1(-25 + -20x + (15x + 12x2)) = 5 + -12x2

Combine like terms: -20x + 15x = -5x
15x + -1(-25 + -5x + 12x2) = 5 + -12x2
15x + (-25 * -1 + -5x * -1 + 12x2 * -1) = 5 + -12x2
15x + (25 + 5x + -12x2) = 5 + -12x2

Reorder the terms:
25 + 15x + 5x + -12x2 = 5 + -12x2

Combine like terms: 15x + 5x = 20x
25 + 20x + -12x2 = 5 + -12x2

Add '12x2' to each side of the equation.
25 + 20x + -12x2 + 12x2 = 5 + -12x2 + 12x2

Combine like terms: -12x2 + 12x2 = 0
25 + 20x + 0 = 5 + -12x2 + 12x2
25 + 20x = 5 + -12x2 + 12x2

Combine like terms: -12x2 + 12x2 = 0
25 + 20x = 5 + 0
25 + 20x = 5

Solving
25 + 20x = 5

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-25' to each side of the equation.
25 + -25 + 20x = 5 + -25

Combine like terms: 25 + -25 = 0
0 + 20x = 5 + -25
20x = 5 + -25

Combine like terms: 5 + -25 = -20
20x = -20

Divide each side by '20'.
x = -1

Simplifying
x = -1

See similar equations:

| 120+20x=180+40x | | -16=a-1 | | 3x-(30+4x)=12x-15-4x+3 | | 3/16=d/64 | | 4=m+7 | | 6r=-102 | | x^3-3x^2+3x-1=100 | | x+8+2x-1+3x-3=180 | | 12-2(p+3)=24+4(3p+6) | | -9=a/8 | | 2(x-4)+0.5(2+8x)=8 | | 4/7=56/ | | 2(2-j)=4(j-10) | | 5x^2=5x+30 | | 14+5x=3(-x+3)-3 | | -8=4+4w | | 3+2w=-1 | | 0+v-17v=4 | | 20x+9y=4 | | 1000*2=(160X)*2+(120X)*2 | | 5200=2+6ln(2q+1) | | -16=3w+5 | | x-1÷4=3/4 | | (2/5x-1)(2-x) | | 5p-3=2p+15 | | 9x+14=-9x-20 | | 80+8x=240 | | w+16=3w | | .5(4x+8)=.20(15-20x) | | 2.2-6.9= | | (X+y)2x-3y=x-y | | 0.3(p-18)=0.6p |

Equations solver categories